Without prompting, Sharpton brought up rumors that he fathered Khari Noerdlinger, whose mom was Sharpton’s spokeswoman before being hired this year as chief of staff for First Lady Chirlane McCray.

In response to a question about whether close pal Noerdlinger was “welcome back” at his National Action Network after taking leave from her City Hall post, Sharpton said: “Rachel and I have not talked about a job. Rachel and I have talked about [her son] Khari.”

Sharpton then steered his remarks far afield and addressed the subject of the teen’s paternity.

“Ironically, about eight months ago a reporter was running around trying to prove that I was Khari’s father. You remember that.”

“We’ve been through all of this before. I’ve gone from you know being too close to politicians, to being too close to entertainers and people’s father that I’m not,” he added.

Noerdlinger didn’t immediately respond to a request for comment. She has never publicly revealed who fathered her ­17-year-old son.

This past summer, The Post ­investigated allegations from ­political insiders that Sharpton was Khari’s father, which Noerdlinger emphatically denied.

“I would never have been with the rev, especially when he was fat,” she said at the time, referring to the years when Sharpton tipped the scales at 300 pounds.

The Post then dropped its inquiry and never even asked Sharpton about the rumors.

In an e-mail to The Post following Sharpton’s remarks, Noerd­linger said: “The provable fact is I met Rev. Al Sharpton in 1999 when he came into the firm I worked at as a client.”

“My son, Khari, was born on Dec. 20, 1996,” she added. “I will not entertain any more questions about my son’s father because it is intrusive, sexist, libelous and defamatory to suggest that someone I did not know when my son was born is his father.”

Noerdlinger, who was hired as the $170,000-a-year chief of staff for mayoral First Lady Chirlane McCray, announced Monday she was taking an indefinite, unpaid leave to spend more time with her son.

Meanwhile, at his Wednesday news conference, Sharpton blasted a report about more than $4.5 million in long-standing tax liens against him, calling it “at best misleading and ­totally out of context.”

“There’s not one dime nor one red penny of current taxes owed by National Action Network or me,” he said.

Sharpton also said “we are on high alert” awaiting findings from grand juries investigating the racially charged police killings on Staten ­Island and in Ferguson, Mo.

“It is very suspect to us that the grand juries in both cases appear to be improperly expanded to where it is about trying to prove or disprove the accused,” he said.

“There’s no reason that both grand juries are taking this long.”

Sharpton also said his group was planning demonstrations in 25 cities to demand that the feds launch a “formal criminal investigation” of Ferguson cop Darren Wilson for fatally shooting ­unarmed teen Michael Brown.